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Antitoxic fibers and fibrous media and methods for manufacturing same

An anti-toxin and medium technology, applied in fiber treatment, biochemical fiber treatment, textiles and papermaking, etc., can solve the problems of increasing the amount and toxicity of leaching, increasing immersion steps, increasing the overall cost, etc.

Active Publication Date: 2015-03-11
L3 BIOMEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] While the addition of an immersion step in post-treatment of non-textiles has been found to increase the amount of antitoxin in the product, thereby increasing the measured kill performance, it has also been found to increase the amount of leaching and toxicity
Additionally, the added immersion step increases the overall cost of

Method used

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  • Antitoxic fibers and fibrous media and methods for manufacturing same
  • Antitoxic fibers and fibrous media and methods for manufacturing same
  • Antitoxic fibers and fibrous media and methods for manufacturing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] Example 1 - Preparation of triiodide solution for mixing into impregnation solution

[0083] A. Preparation of 1N iodine (129600ppm I 2 ):

[0084] 1. In a 1L volumetric flask, add about 250mL of high-purity water

[0085] 2. Weigh out 175 g of KI solids and add to a 1 L flask containing water

[0086] 3. Vortex the solution in the flask to dissolve all the KI

[0087] 4. Weigh out 130 g of iodine solid and add to 1 L flask containing KI and aqueous solution

[0088] 5. Fill the volumetric flask to the mark line with high-purity water

[0089] 6. Add a magnetic stir bar to the flask

[0090] 7. Cap the flask with a glass stopper

[0091] 8. Cut a piece of parafilm and wrap it around the top of the flask / cork to prevent any leaks

[0092] 9. Pick up the flask and place it on the magnetic stir plate

[0093] 10. Set agitation control to 7 and allow the solution to mix overnight to dissolve all iodine solids

[0094] 11. Dilute as needed

Embodiment 2

[0095] Example 2 - Example of Antitoxin Fiber Medium

[0096] In one example, a sample amount (18.0 g) of an antitoxin fibrous medium of iodine-containing polyolefin was formed by the method of the invention comprising impregnating the starting polyolefin in a concentrated solution of triiodide at about 8500 ppm middle. The water content was approximately 2.5% by weight, therefore, after drying, approximately 17.10 g of dry antitoxin medium was produced. The % of total impregnated material added to the untreated sample was measured to be about 1.6% or 0.274 g by weight of the dry media. The antitoxin (iodine) was measured to be about 0.248 g or about 1.45% by weight of the dry antitoxin medium. Added chemical components were about 0.038 g.

[0097]A second sample amount (18.0 g) of iodine-containing polyolefin antitoxin fiber medium was prepared according to the same method as sample one. The initial water content prior to drying was approximately 5.0% of the initial wei...

Embodiment 3

[0098] Example 3 - Example of a mask

[0099] Face masks are formed using the antitoxin fibrous media of the present invention.

[0100] refer to image 3 , treating a fibrous layer for a mask with a triiodide impregnating solution prepared according to the method of the present invention. The resulting fibrous medium was used to make scrim layers for face masks. In the figures, the scrim is referred to as TrioMed active scrim, while the prior art scrim is referred to as Triosyn / Simalfa. TrioMed Active Scrim contains 0.4 grams per square meter (GSM) of iodine. Triosyn / Simalfa scrim contains 2.0 GSM of iodine.

[0101] The bactericidal efficacy of these covers was tested by incubating each test cover for 15 minutes with a known amount of Pseudomonas aeruginosa. The number of remaining viable bacteria was then quantified.

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Abstract

Antitoxic fibers and fibrous media contain impregnated material including an antitoxin. A method for producing antitoxic fibers and fibrous media includes impregnating a fibrous media by dipping in a dipping solution containing a concentrate of an antitoxin to form a fiber with impregnated material including an antitoxin. The impregnated material is at least about 1.0% to about 2.5% by weight of the fibers and includes additive chemical components including at least one of an anionic, cationic or nonionic component, an oil and / or an organic solvent, and an alcohol. The additives include those found in a spin finish. The antitoxin is in an amount of at least 0.1% by weight of the fiber. The manufacturing process can be applied to any woven or nonwoven media. Products with antitoxic properties formed therefrom include wound dressings, gowns, articles of clothing, surgical drapes, protective clothing, shoe covers, gloves, hair covers, air filters, including facemasks, privacy, hygienic products, curtains, medical tape, and wipes.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to the following co-pending U.S. Provisional Applications: 61 / 654,325, filed June 1, 2012; 61 / 654,406, filed June 1, 2012; December 10, 2012 Filed No. 61 / 735,388, each of which is hereby incorporated by reference in its entirety. technical field [0003] This invention relates to antitoxin fibers and fibrous media and methods for their manufacture, and more particularly to methods of impregnating or molecularly grafting antitoxins onto and into fibers and media formed thereby. The invention also relates to products comprising the antitoxin fibers and fabrics thus formed. Background technique [0004] Various methods are known for producing antimicrobials and other antitoxins for use in nonwoven and woven fabrics. However, there is still a need for improvements in the production of antitoxins or antimicrobials, as well as products incorporating these antitoxins or antimicrobials, exhib...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/00D06M11/09
CPCD06M11/07D06M11/50A01N25/34D06M11/09A61L2300/106A61L2300/202D06M16/00A61L31/16A61L15/44A41D13/11A01N59/12A01N47/44A01N59/00A01N59/16A01N59/20
Inventor P·J·梅西耶D·奥哈永
Owner L3 BIOMEDICAL
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